Trigger and safety mechanism for sporting guns



Jan. 12, 1932. R. VON FROMMER TRIGGER AND SAFETY MECHANISM FOR SPORTING GUNS Filed Oct. 16, 1929 2 Sheets-Sheet i 1932- R. VON FROMMER 1,840,478

TRIGGER AND SAFETY MECHANISM FOR SPORTING GUNS Filed Oct. 16, 1929 2 Sheets-Sheet 2 1 v u i4 Patented Jan. 12, 1932 Warren STATES streets mil ti men; OF scariest; HiifiARY A p'licatioiifiled October-18'; 1929, serial no. 399,999,a1'id innfin' ary caterer-20,- 192a This invention relates to a trigger and safety mechanism for sporting guns. One ob ect of the invention is to provide a sporting gun the cocking members of which;

5 influencing the hammers also serve to release the automatic cartridge ejector.

Another object of the invention is to providea cocking mechanism for sporting guns in which the member releasing theautomatic 1o cartridge ejector is coupled with th ecocking member, by means of a screwthreadj this rendering the effective length of said cocking element as. well as that of the releasing element for the automatic cartridge ejector adj ustable at will. o A i A further obj ect of the invention is to provide a cocking mechanism for sporting guns in which the cocking elements are in perma nent contact with the hammers under the positive action of a spring. v o Y o 1 A still further objectof the invention is to provide a sporting gun in whichthehammers may act as backthrow hammers forwhichpurpose the cocking mechanism-according to the present invention is so devis'dthat the mers pushin'g the latter backwards'so that the firing pins of the hammers are forced away from the chambers. A I

A- still further object of theinvention is to provide a trigger and safety mechanism for sporting guns in which not only the triggers mechanism by means of hooks provided on the side faces of the hammers,- the said hooks cooperating with counterhooks governed by the safety bar; the hammers being thus secured m their cocked position. For governing the breech body showing. thehammers cocked and but also the hammers are secured by the safetycounterhooks the safety bards provided with suitable oblique surfaces. The counterhooks, as well as their actuating springarearranged in the same apertures in which the signal pins marking the aotual'condition (cooked or uncocked) ofthehammersand actuated thereby are provided. o, 4 V

A still further object of the invention is to provide a sporting gun in which the safety or released condition of the gun will a ways be completely established as soon asthfe operati'on of the safety device is initated by hand so that the completion of the operation of the safetydevice does not depend on the gunman. Borthis purpose the safety bar is con structed in such a manneras to be influenced by a spring controlled lug having a wedge shapeden'd so that if the actuating of the" safetymechanism is initiated by hand one of the conditions above mentioned will be automatically established. In the accompanyingdrawings one form of the trigg'e'rand safety mechanism attaining tothe' invention is shown byway of example.

Fig. 1. is a vertical section through the breach body of the gun the hammers being uncooked. t I it a Fig. 2 is a similar section with the-hammers cocked, hammers and triggers secured.

Fig. 3 is a top view of the breech body showing thekey effecting the opening of the Y gun, the said key having a nose operating. the safety bar which is shown in dotted lines.

Fig. 4' is a horizontal sectional view of the secured by the safety device thesa' fety bar being shown with its forked front end, the arrangement 'of'the signal pins beingalso, shown in this figure. v, t V o y 7 Fig. ,5 is a partial front-view of the breech bodyand shows the front end of thecocki'ng members together with the member effecting the release of the automatic cartridge ejector; Fig. 6 is a cross sectionalview of the breech body taken on line of Fig.- 2. N Fig. 7 is a longitudinal sectional vieW'of the breechbody taken on line VIIV'II of Fig. 1. I I

r The hammers 3 are pivotally arranged on the axle 2 inthe' breech body 1 and are actuated by the pin which is under the action of the firing spring 4.. The nose portion'6 of "the hammers 3 is'influenced by the cock 'ing rods 7 pressed against the nose portion 6 of the cocks by the spiral springs 8. 'The' stroke of the cocking rods 7 is limited by the screws 9 (Figs. 1 and 6) To the'front end of the cocking rods 7 are secured the release members 10 which are screwed on the cocking rods 7 and are of such construction that their shoulder 11 cooperates with the cocking le- 7 vers 13 pivotally mounted round the pin 12.

The release members 10 have a tooth 38 arranged atLtheir front .endfand'adapted to release some known type ofautomatic cartridge If the cocking rods 7 and therewith ejector.

' the teeth 38 are in their foremost position (Fig.1) the automatic cartridge ejec'tors are released at the tilting ofthe barrels in a known manner while in the rear position of the said teeth (Fig. 2) the ejector mechanism is not influenced. The release members 10 maybe screwed inwards 0r outwards on the cocking rods within the limits of the screw thread provided thereon'whereby on the one hand the length of the teeth 38 of the release members and on the other hand that of the cocking rods may be adjusted at will. This adjustment is of importance for the reasonv that thereby the cocking of the'hammers as well as the automatic ejection of the cartridge may be influenced.

As will be seen in Fig. 2 the cocking levers at the tilting of the barrels will actuate the cocking rods 7 in consequence of the stress exerted upon the COCkiIl'g'lGVGIS by the barrel extension, the hammers 3 ofthe gun being thereby cocked.

In order that the firing pins of the ham-v mers which are protruding from the surface;

39 of the breech body after the firing of the gun maynot strike or scrape the bottom of the'cartridges or the primers thereof the hammers 3 are made in the form of backthrow hammers. For this purpose the stroke of the firing sprin gs 4 or more correctly of the pins 5 actuated therebyis restricted by the shoulder 15 arranged on the pins 5 the s end position of the pin5 and therewith that of the spring -being' determined by said rods 7, by their contact with the surface 16 6O of the cocking rods 7 (Fig. 7). I i i The opening of the gun is effected in a well known manner by the key 40 actuating the locking bolts. Besides the projections actuating such'locking bolts the key is also provided with a proj ecticn 17 (Fig. 3) which at the turning of the key works the safety bar 18 and positively pushes the same into its safety position. Th'e safety lever '19, the head portion 20 of which is connected to the safety bar 18, is made in the form of a two armed lever the forked arm 32'of which secures the triggers 30 and 31 in a knownmanner. The safety lever 19 is also provided with a wedge shaped prolongation 21 subject to the action of a spring actuated wedge This' mechanism will move the whole of the safety device as soon as the shaped "pin 23.

adjustment of the same is initiated by hand through working thebutton 11,'in to one of its end positions (safety or release position) in suclra manner that a stoppage at-some intermediate position: is fully excluded;

=Thesafety-bar 18 has a fork shaped forward end: the two branches 24 (Fig. 4)' of which govern thefhooks 26 and 27 subject to the action of'the common spring 25 in such a 'manner that the said hooks are interconnected in thesafety position of the gun with the hooks 28 and 29 of the hammers 3 thelatter beingthereby secured in their safety position. The signal pins 33 and 34am actuated by the springs 35 ina well known man-- V ner-and aregovernedby theoblique surfaces 36and 37'0f the hammers 3. V Having described my invention I claim:

-, "1. Atrigger and safety mechanism comprising a cocking member provided with an extension for. releasing the, automatic car tridge ejector therelease member for the cartridge ejector being connected to the cocking memberby' a screw thread in such a manner that thelength of the release member and of the cocking'member should be adjustable. v

2. A trigger and safety mechanism accord-,

ing toclaim l in which the cocking member and the firingspring are acting upon the hammer on the two sides of its pivot, the said cocking member being maintained in positive contact with the hammer in the direction of cocking. v r

* 3. A trigger and safety mechanism'accord ing'to claim -'1Iin which the hammers are pro vided with hooks cooperating with counterhooks movable in a direction at right angles.

to the-longitudinal axis of the gun by the safety bar so that in:.the safety position the hammers are also secured. 7

4:..A trigger and-safety mechanism in I which-"the safety. leveris provided with a wedge shaped prolongation subject to the act-ion of a spring actuated wedge shaped pin whereby the hand" initiated movement of the safety button is continued until one.

of the end positions, i. e. the 'safetyor release position of the safety mechanism is attained. 5. A trigger and safety mechanism for sporting guns comprising a hammer, a firing spring and a cocking rod, means for limiting the stroke ofthe'firing spring in such amanner that it'may notinfluence the hammer in erned by the safety bar by means of oblique surfacesthereof.

7 A trigger and safety mechanism according to claim 1 in which the hammers are provided with hooks cooperating with counterhooks movable in a direction at right angles to the longitudinal axis of the gun by the safety bar, the counterhooks and the spring actuating the same being arranged in the same aperture in which the signal pins actuated by the hammer are provided.

In testimony whereof I have affixed my signature.

RUDOLF V. FROMMER. 

